Thou shalt tread upon the lion and adder. Conquered enemies prostrated themselves before their conquerors, who, to mark the completeness of the subjection, placed a foot upon the prostrate form. From this practice the metaphor of "treading under foot" for conquering became a commonplace (see Psalms 7:5; Psalms 44:5; Psalms 55:12, etc.
). The "lion" here represents all open and violent foes; the "adder," all secret and malignant ones. The young lion (kephir, the lion in the height of his strength) and the dragon (tannin, the most dreadful form of serpent) shalt thou trample under feet.
An emphatic repetition, with a certain heightening of the colour.